Composite roofing.



P. J. MOGLASKEY.

COMPOSITE ROOFING.

APPLIOATION FILED NOV. 12, 1912.

Patented Sept. 15, 1914,,

z )2 WP INVENTOR v giw. M

for roofing, may be used rnANKLrN .r. McCLASKEY, or rr'rrsnunen, PENNSYLVANIA.

comrosrrn ROOFING.

Specification of, Letters Ilat'ent.

Patent d Sept. 15, 1914.

Applicaton filed November 12, 1912. Serial No. 730,915.

To all whom it may concern:

Be it known that I, FRANKLIN J. Mo-

CLAsKEY, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Composite Roofing, of which the following is a specification.

a My invention relates to composite roofing. The object thereof is to provide a roofing composed of various layers of material which shall render the same moisture and fire-proof.

Another object is to provide such roofing material with moisture and fire-proof joints which permit expansion and contraction without causing the same to crack or warp.

My invention, while devised primarily for walls, ceilings,

floors, etc.

Referring to the accompanying drawings, Figure 1 is a fragment of'ai-roof provided with my improved roofing, parts being in section to show the internal'structure. Fig. 2 is a plan of a roof 'or the like provided with sections of my roofing connected by my improved joints, parts being broken away to show the internal structure. Fig. 3-.is a section on the line IIIIII, Fig. 2.

On the drawing, 1 represents the ordinary roofing boards or base on which my improved roofing is laid. On the roofing boards, I lay preferably one or more sheets 2 of asbestos or other fire-proof material to protect the superposed material. Several layersof wool-felt, or burlap or canvas, or

. any two or more of them, saturated with asphalt or other ranged alternately with layers ofasphalt, or other hydro-carbon cement are superposed on the asbestos 2. I do not limit myself to any number or arrangement of these superposed layers as their number and arrangement will vary with the purposes and attendant' conditions. I have shown the layer 3 of asphalt on the asbestos 2 and a layer 4 of wool-felt or the like saturated withas phalt on the asphalt layer 3. A layer 5 of asphalt or similar material lies on the layer 4 and a layer 6' of wool-felt or equivalent material lies on the layer 5. A layer 7 of asphalt or equivalent lies on the layer 6. The number of these alternate layers may be made greater or-less than the number shown. The layers of wool-felt or its equivalent, as

netting,

hydro-carbon cement arthe strips 11.. The

any order and ness. known as two-ply wool-felt. Onthe last or uppermost of the superposed layers, for example on the layer 7 of asphalt, I place a may have any desired thick course or -layer 8 ofbroken slag or stone,

gravel, or the like, preferably pressed partly into. the layer 7 so as to adhere to the same very tightly. The layer 8 is quite rough or uneven as shown on Fig. 1. I place a wire reinforcement 9, preferably a wire mesh or and then I pour on the layer 8 and the netting 9 a course or layer 10 of Portland cement'mixed with sand and broken slag or stone, gravel, or the like. This layer 11 runs through the meshes of the netting and firmly binds thelayer 8 and the reinforcement 9 together and prevents the access of fire or moisture to asphaltic and other layers beneath. The surface of the layer 10 may, if preferred, be finished with finer material as shown. i

The roofing described may be made into blocks or strips 11 which are placed when used side by side with the adjacent edges separated to form spaces. The layer 2 of asbestos may, if desired, to make the bottom entirely fire-proof, be made to extend across the spaces 12, as shown in Fig. 3.

I prefer to place strips 14 of copper or other sheet metal in the spaces 12, the edges of the strips 14 lying between the layers of the strips 11,.and the central portion of the strips 14 being arched. As the strips 11 of roofing expand the arch of the metal strip can follow without the edges pulling out of strips 14 are elastic or flexible water and fire-proof metal connections. Even though the layers of roofing material above the strips 14 should crack, water could not pass below the said strips.

I claim- A 1. In a composite roofing, superposed layers of adhesive waterproof material, a layer 100 of coarse material adherent to the top of the adhesive waterproof material, an open metal reinforcement on the coarse material, and a layer of Portland cement combined with coarse material poured on the first named 105 through and over the coarse material, and

reinforcement the coarse material containing large fragments firmly anchored in the Portland cement on one side of the reinforcement and extending through However, I prefer to use what is burlap or canvas may follow one another in the open metal reinforcement, and anchored in the adherent waterproof material the coarse Portland cement on the other side of the material containing large fragments firmly 15 reinforcement. h anchored in the Portland cement'on one side 2. In a composite roofing, superposed layof the reinforcement and extending through ers of adhesive Waterproof material, a layer the open metal reinforcement, and anchored of coarse material adherent to the top of in the Portland cement on theother side of the adhesive Waterproof material, an openthe reinforcement.

metal reinforcement on the coarse material, Signed at Pittsburgh, Pa., this 7th day of and a layer of Portland cement combined November, 1912.

-with coarse material poured on the first FRANKLIN ll. MCGLASKEY.

named coarse materia and through and Witnesses? I over the reinforcement, and fire-proof mate-' ALICE E. DUFF, rial in contact with the lowest layer of the F. N. BARBER. 

